Coupling.



AUNITED STATES PATENT oEEIoE. i

FRANK J. MATGHETTE AND CHARLES MoUKos, or MILWAUKEE, WISCONSIN; sAID MoUKos ASSIGNOR TO SAID MATCHETTE.

COUPLING.

Specification of Letters Patent.

Patented July 2, 1907.

Application ned August 4,1905. senti No. 272,626

To all whom 'it may concern:

Be it known that we, FRANK J. MATCHETTR, 'a citizen ofthe United States, and CHAnLEs Mouxos, a subject of the Kingdom of Greece, both residing at Milwaukee in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Couplings, of which the following is a specification, reference being had to the accompanying drawing, forming a part thereof.

This invention relates to couplings for connecting pipe sections and other similar cylindrical or annular parts. lts main objects are to provide a coupling which can be readily appliedand removed to connect and disconnect sections of pipe or the like; to produce and` maintain tight joints and a continuous passage of uuiform area between the sections when they are so connected; and generally to improve the construction and operation of couplings of this class.

The invention consists incertain novel' features of construction and in the peculiar arrangement and cornbinations of parts as hereinafter particularly described and pointedy out in the appended claims.

In the accompanying drawing like characters designate the same parts in the several figures.

Figure 1 is an end elevation of a coupling embodying the invention, one of the pipe sections to which the coupling is applied being shown in cross section on the line 1 1, Fig. 2; Fig. 2 is an axial section ofthe coupl ng and parts of pipe sections to which it is applied, on the line 2 2, Fig. 1; an'd Fig. 3is a plan view ofthe coupling.

The coupling consists generally of two annular mmbers a and b and of a clamping ring c. The members a and b are formed or provided at their proximate ends with external oppositely beveled flanges or rims d, and when the coupling is to be used for connecting pipe sections or the like, one member b is formed with an ani nular end groove or recess and the other member is formed with a corresponding end tongue or projection e fitting into said groove or recess and adapted to exactly center and hold the connected members and pipe sections or the like in exact alinement with each other. The tongue or projection e is made of such thickness that it will bottom in the corresponding groove or recess before the end faces of the members outside of the tongue and groove come together, thereby making a tight butting joint between the members next to their bore. For connecting pipe sections f f as shown in Fig.

2, both members a and b of the coupling are counter bored to form internal shoulders g against which the ends of the pipe sections abut, the coupling thus forming between the sections a continuous passage corre.

sponding with the bore of the sections.

The clamping ring c 1s severed to render it expansible and contractible and also to permit oi its being readily placed upon and' removed from the members which it is designed to connect. For certain purposes, particularly when it is made of spring or flexible metal and of considerable diameter, it may be severed on one side only and sprung or bent suiiciently to bring it into place upon or to remove it from the adjoining members of the coupling; but for other uses it is preferably severed on opposite sides into two parts or sections as shown in the drawing, and these two parts or sections are hinged together at one end. In either case it is provided on the side where it opens with means for drawing its severed ends toward each other and for clamping it upon the members a and b, and is formed with' an internal groove which is preferably V-shaped or beveled to correspond with the oppositely beveled faces of the flanges or rims d and to force and hold the members a and b snugly together end to end when it is clamped thereon. 'I

For clamping and holding the ring c upon the members a and b it may be formed as shown, at its separable ends with tangentially'grooved or notched lugs h and t', and provided with an eye bolt or screw j, pivoted at one end in the lug h'and having a nut k threaded on the other end and adaptedto be turned into or out of engagement with the lug t'. A washer lmay if desired, be interposed'between the lug i and nut 1c, as shown in Fig. 1.

When the ring c is 4placed upon the members a b and closed over the flanges or rims d, the bolt j is swung on its pivot into the groove or notch in the lug i, and the nut k is screwed up against said lug, thereby clamping the ring upon the beveled flanges or rims d and drawing the members a and b tightly together end to end. By slackening the nut lc the bolt j is released and can be swung out o engagement with the lug t. The ring c can then be spread, thereby releasing the members a and b, and the .coupled pipe sections or other parts. i

It will be observed by referring to Fig. 2 oi the draw,-

ig that a little clearance or space is left between the` We claim:

f 1. In a coupling the combination of two members having oppositely beveled external flanges and formed at their met-tin"v ends, me with nn nnnnlan' reeess'and the other with :In nnnlllzll' venturing.: projet-tion ittln into snid reeess. `nld projeetion being of grenier Vthickness thmi the depth el' the recess. und n severed eontl'nctlble ring.: prnvtled wilh menns for elnlnpine,r it upon Suid members und having :in nternnl groove llting over Said iinnges und :nlnpled when elnnxped thereon to draw them toward eneh other. snbstnntlnlly'ns described.

4L. in n eonpliug,r the eombinntion of annular members having nppusitely beveled external flanges, eounterbored ut their unter ends'next; to lheir smaller bore and formed at their inner ends one with un annuler recess und the other with nn annulancentering projection iitting in said recess,

FRANK J. MA'lLlI ll'l"lll. CHARLES MUlllUlS. Witness s* Clins. L. Goss, 

